A06B-6089-H201
、一种是常规的多个站点的任务轮询执行的耗时。但这种轮询快慢和通信任务量有关，只要通信任务量不便，就改变不了执行速度，改波特率不算。
除非由于设备工作模式的变化导致通信的任务数量有变化，或者由于个别站点的通信质量不好或者掉站而导致的时间拖延，而这后者是有改善余地的。
就是在经过错误次数之后，把有问题的站点退出轮询。这样可以节约有限的通信资源，保证其它正常站点可以能执行，不被耽搁。
但这种轮询的快慢并不是这里要探讨的，因为它说明不了单个通信任务在本质上的执行快慢。
2、当用户的操作命令和参数发生变化的时候，Modbus设备能在多少时间之内迅速做出反应，这才是有分析意义的。
这里我们用1200和2个温控器之间的Modbus通信的实例，来做一个细致的分析。
A06B-6089-H201
Cincinnati Milacron 3-531-2171A Rev. G Circuit Board 6400
Refurbished By Advanced Technology Services (ATS)? 6400
FANUC A06B-6058-H025 SERVO AMPLIFIER UNIT 6400
Moog 152-J453A-1 Brushless Servo Controller 152J453A1 6400
Bailey Controls NAMM03 Infi 90 Analog Master Module 6400
Moog 152-J453A Brushless Servo Controller 152J453A 6400
Emerson AXIMA-04-00 4-Axis Servo Base Controller 6400
ABB YB560103-BN/2 DSQC230 Computer Control Module 6400
Mitsubishi FX-1GM MELSEC Positioning Control Module 6400
Square D PFA36150GN I-Line II Breaker Busway Switch 6400
MTS Automation FLX Series Servo Amplifer Rack W/PS 6400
Banner 51916/51920 PVA 375mm Emitter/Receiver 6400
Adept Tech 10300-11200 JIB Joint Interface Board 5600
Westinghouse NL-742-BH A/D Converter Module 5600
ELECTRO CAM PLuS PS-4000-10-024 PROGRAMMABLE SWITCH 5600
Allen-Bradley 1394-AM50 Axis Module Servo Controller 5600
SERVOLAND SMCM4-A1 Servo Controller 5600
Bailey Controls NCOM03 Network 90 Controller Module 5600
ABB YB560103-CH/10 DSQC 239 Robotic Remote I/O Module 5600
GE 193X717ACG01 Power Supply Module 5600
Reliance Electric 0-51831-6 CVTG Drive Module 5600
OMRON C500-AD501-EU A/D MODULE 5600
Microscan MS-850 FIS-0850-0002 Bar Code Scanner 5600
Allen-Bradley 1785-L40B/E Rev. L01 PLC-5/40 Processor 5600
Reliance Electric 0-52803-2 FVCC Drive Board 5200
Siemens 6FX-1111-1AA00 System 3 Encoder Module 4800
KISTLER 5851C CoMo CONTROL MONITOR 4800
Remanufactured Reliance Electric 0-51839-2 IRCC Module 4800
Reliance Electric 802816-1RD Driver Module 4800
Leroy Somer FMV 2307 1.5T Freq. Inverter Drive FMV2307 4800
STI MC47-20-600 MICROSAFE TRANSMITTTER & RECEIVER 4800
Bailey Controls NBIM01 Network 90 Bus Interface Module 4800
Reliance Electric 0-54220-2 Autobus Automate Module 4800
Microscan MS-860 FIS-0860-0007 Bar Code Scanner MS860 4800
Banner Engineering LG5A65NUQ* 4800
Modicon AS-884A-301 884 Controller 4800
Bailey Controls INLIM03 Infi 90 Loop Interface Module 4800
KISTLER 5851C CoMo CONTROL MONITOR 4800
Banner Engineering PPCTL PresencePlus Pro Controller 4800
Sony DG10BN/DG10N2/LT20 Digital Measuring System 4800
Reliance Electric 805403-2R Resistor Scaling Module 4800
BALOGH MRUC-20 PROCESSOR BOARD FOR MODUL-R CAN NETWORK 4800
VERO PK 200 MONOVOLT 115V SERVO POWER SUPPLY PK200 4800
Siemens 6EC1-110-0A Timer Control Board 4800
Cincinnati Milacron 3-533-0098G Controller Board 4800
Refurbished By Advanced Technology Services (ATS)? 0
Refurbished Moore Products 15669-36-4 PROM Board 4800
Reliance Electric 0-52838 USRA Drive Module 4800
FANUC A06B-6058-H025 SERVO AMPLIFIER UNIT 4800
ABB YB560103-CH/8 DSQC 239 Robotic Remote I/O Module 4800
ABB YB560103-CH/8 DSQC 239 Robotic Remote I/O Module 4800
Allen-Bradley 1391-DES15-DI-AQB AC Servo Controller 4800
MTS Automation FLX Series Servo Amplifer Rack W/PS 4800
ABB YB560103-BD/4 DSQC 223 Robotic I/O Module 4800
Honeywell RM7838 A 1014 Semi-Auto Burner Control 4400
FENNER CONTREX M-TRIM 2 Servo Drive LNC 4400
ADEPT TECH 10332-48712 REV. B 040 8MB PROCESSOR BOARD 4400
ADEPT TECH 10332-00655 EVI VME ENHANCED VISION BOARD 4400
Allen-Bradley 22B-D010N104 PowerFlex 40 5HP AC Inverter 4400
AUTOTECH E7N-S0000-9FIF RESOLVER ENCODER 4000
Gould 110-0144 PLS4 Power Supply 4000
Allen-Bradley 1773-L1A PLC-4 Microtrol Controller 4000
BALOGH MRUC-20 PROCESSOR BOARD FOR MODUL-R CAN NETWORK 4000
Control Instruments PRB109 FFA Sentron Alarm Board 4000
30-Day Warranty? 4000
Remanufactured Reliance Electric 0-51814-4 VFCE Module 4000
Siemens TI 505-4608 24-110 VAC PLC Output Module 4000
14-Day Warranty? 4000
Modicon PC-0984-380 Processor Module 4000
With Executive and Memory Modules? 4000
A06B-6089-H201
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